Adjustable thread-selecting device



J. E. MOORE ADJUSTABLE THREAD SELECTING DEVICE Filed A il 15, 1924 Patented Dec. 3Q, 1924-.

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ADJUSTABLE THREAD-SHEEP 13'3- DEVICE.

Application filed .Ptprfl 18,

To all whom it may concern:

Be it known that 1, JOHN Erma Moors-1, a. subject of the King or" Great Britain and Ireland, residing at Eanam, Blackburn, in the county of Lancaster, England, have invented certain new, and useful Improvements in Adjustable Thread-Selecting De vices, of which the following is a specific-a tion. 7 r This invention relates to selector needles for use in connection with apparatus such for example as thatwhich is described in Patent Specification Number 1,259,546 .o selecting and separating warp threads ant has for its chief object to construct needl of this class in sucha manner that it will have a bigger range of action than other needles as 'hitherto constructed. These needles are formed with a notch or recess at one side to take the warp thread, or a number of warp threads, the size of the notch being determined by the thickness of the warp thread, or the'number of threads that the needle has to take. Machines in which these needles are used are capable of dealing with warps of diflerent thicknesses and for some classes of work it is necessary to select only one thread at a time whereas for other classes of work it may be necessary to select two or more threads at a time. This can only be done at present by using a needle that has the correct size of notch for the particular purpose in hand. If another warp having a dillerent size of warp threads is introduced into the machine or it is required to select a different number oft warp threads at a time it becomes necessary to substitute another needle with the correct size of notch to suit the change that has been made.

According to this invention the needle is provided with a movable member by adjustment of which the size of the notch can be regulated to suit various classes of work hich come within the scope of the machine in which the needle is to be used. A. feature of the invention'consists in mounting the needle in its holder in such manner that it can be secured without the use of a clamping screw and can be instantly inserted and removed. as and when required.

In the accompanying drawings z- Fig. 1 is a plan of a needle and holder constructed in accordance with this invention.

Fig. 2 is a similar View to Fig. 1 show- Serial N's. ing a difierent position or? the part which constitutes the notch.

Fig. 3 is an edge view of portion of the carrier being the broken lines, and

F a modifiedv construction of needle.

A indicates the needle, and 3) the carrier or holder. 3

In the construction shown the needle A. is slotted at a to receive a thin plate a which is pivotally mounted at c in the slot (1. The front end of this plate cros s the slot in a slanting direction and its end is operatively connected with a screw which passes transversely through the needle, the arrangement being such that when the screw is turned in one direction or the other, it imparts a turning movement to the plate about its pivot. When the plate is moved to the extreme limit in one direction by the adjusting screw, the point of the slanting end of the plate lies within the slot, or comes flush with the side of the needle as shov. '1 in Fig. 2. It the adjusting screw a is now turned in the opposite direction it causes the point of the slanting end to project through the slot so that it stands out atone the needle, a indicated by side of the needle and forms the notch as shown in Figs. 1 and 4:, the amount which such slanting end does project from the side of the needle being capable of regulation from nothing to any predetermined extent. When the plate has been adjusted to produce the required size of notch it can be secured in its adjusted position by a clamping screw a which passes through the needle and through a slot a in the plate. instead 01 the needle being slotted to re ceive the plate, the latter may be pivotally mounted on the side of the needle as shown in Fig. 4.

Any other appropriate construction can be used for imparting lateral. movement to the plate for regulating the size of the notch, for example the plate can be arranged to be moved in an endwise direction by a nut or screw or other propelling device so that as its slanting end is forced against the end of the slot, it will be displaced in an outward direction, its return movement being effected by a spring, or other device, when the propelling means is moved in the opposite'direction. If desired the plate itself may constitute a spring so constructed that the slanting end tends to project outwardly to one side of the needleand is forced in- Wardly to produce a notch of the required needle A to the carrier or holderB oornprises a spring 6 that is attached to the carrier and enters a notch 23? or hole in a portion of the carrier and another notch athat is formed. in the needle. l Vith this con struction the needle can be pushed into'position or pulled out of the carrier as and when required, the spring Z) yielding during these movements and being sufficiently strong to retain the needle in position against accidental displacement when the machine is in operation. If desired more than one notch may be formed in the needle to enable its position in the holder to be adjusted.

What I claim as iny invention and desire to secure by Letters Patent in the United States, is

1. A thread selecting device, comprising a guide needle, a flat'plate pivoted at its front end portion to the guide needle and havin a Jointed front end DOP'tiOIl ada ted e l l P to be adjustedso as to project abovethe level of one side of theguide nee'dle, a notch-being thereby formed by said needle and plate be tween the pivot of the plate and the point or the needle,and means for clamping the plate to the guide needle. I

2. A thread selecting device as set forth in claim 1, and provided with a. screw for moving the plate pivotally to adjust it.

v 3. A thread selecting devicecoinpri'sing a guide portion, a plate pivoted" to it and shaped at its front endtofl form a barb or ledge projecting from the guide portion, an adjusting screw mounted in "the guide portion and arranged to cooperate with the plate in such manner as to turn the latter ledge projecting from the guide portion near its front end, a carrier formed with a socket to receive the rear end of the guide portion, a spring mounted on the carrier and adapted to interlock with the recessin the guide portion.

In testimony whereof I affix my signa:

ture. 7

JOHN ERNEST MOORE. 

